14 lines
651 B
Text
14 lines
651 B
Text
LRC - Perl interface for longitudinal redundancy check generation
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The Longitudinal Redundancy Check (LRC) is a one byte character,
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commonly used as a byte-field in data transmission over analog systems.
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Most commonly, in STX-ETX bounded strings sent in financial protocols.
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Following some previous experience with such protocols, I wrote
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an LRC function in perl and later decided to re-write in C
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for efficiency. The result is this module String::LRC,
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which generates this aforementioned byte.
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Commonly used in financial protocols as follows with ETX (ASCII 03)
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appended to LRC sum and packets after the STX (ASCII 02), payload,
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and ETX chars.
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